1. Swap 2 integers present in variables num1 and num2 without using temporary variable
2. Write a function which returns true if given value of number is an integer without using any inbuilt functions
3. Create a function which returns a random number in the given range of values both inclusive
4. Write a program to reverse a string
5. Write a program to reverse a string by words. Also show the reverse of each words in place
6. Write a program to reverse a given integer number
7. Write a code to replace all the spaces of the string with underscores
8. Write a function which can convert the time input given in 12 hours format to 24 hours format
9. Write a function which accepts a string argument and returns the count of characters between the first and last character 'X'
10. Write a code to truncate a string to a certain number of words
11. Create a regular expression to validate if the given input is valid Indian mobile number or not
12. Write a function which returns a list of elements which contains at least one character as digit
13. Write a function which checks if a given search text is present either in the beginning of the first name or the second name
14. Write a function to chop a string into chunks of a given length and return it as array
15. Write a code to remove all the vowels from a given string
16. Create a function which returns random hex color code
17. Write a function which accepts two valid dates and returns the difference between them as number of days